Keyless padlock



Dec. 22, 1925. 1,566,298

A. WILSON KEYLESS PADLOGK Filed July 1, 1924' /j 2@ 5 ,e/flm r v ,AZBHPT M Patented Dec. 22, 1925.

UNITED STATES ALBERT WILSON, YUMA, ARIZONA.

KEYLESS Application filed July 1,

To all whom it may concern:

Be it known that I, ALBnR'r WILSON, a citizen of the United States, residing at Yuma, in the county of Yuma and State of Arizona, have invented certain new and useful Improvements in Keyless Padlocks, of which the following is a specification.

This invention appertains to looks and the primary object of the invention is to provide a permutation padlock of novel and simplified construction, whereby the necessity for utilizing a key with the padlock will be entirely eliminated.

A further object of the invention is the provision of a novel permutation padlock embodying a barrel and rigid end plates, and novel means for forming the barrel and associating the combination rings with the barrel.

A further object of the invention is the provision of novel means for associating one of the end plates ofthe barrel therewith, whereby accidental turning movement of said end plate relative to the barrel is preeluded.

A further object of the invention is to generally simplify the construction of permutation padlocks and render the same durable and eflicient in use.

lVith these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawings, in which drawings:

Figure 1 is a perspective view of the padlock showing the various parts thereof in disassembled positions,

Figure 2 is a longitudinal section through the improved padlock in its assembled position and the shackle of the lock in place,

Figure 3 is a fragmentary longitudinal sectional view taken at right angles to Figure 2 showing the means carried by the combination rings for engaging the arms of the shackle of the padlock,

Figure 4 is a top plan view of the improved padlock with the cover or end plate removed and the arms on the shackle in cross section, and

Figure 5 is a detailed elevation of the shackle.

Referring to the drawings in detail, wherein similar reference characters desigrate corresponding parts throughout the several views, the letter A generally indi- PADLOCK.

1924. Serial No. 723,553.

cates the improved padlock which comprismg an axially disposed solid cylindrical barrel 10 having formed integrally therewith orrigidly connected thereto a lower end plate 11, the periphery of which extends beyond the outer face of the barrel forming a stop, for a purpose, which will be hereinafter more fully described. The solid'barrel 10 at opposite diametric points is provided with longitudinally extending semicylindrical grooves 12, for a purpose, which will be also hereinafter more fully described. At right angles to the grooves 12 the opp0- sitesides of the barrel 10 I have provided with equi-distantly spaced retaining lugs 13 which act as means for normally holding the combination rings 14 in place on the barrel as will be hereinaftermore clearly described, as the description proceeds. The upper end of the barrel 10 receives the cover or top plate 14 and this plate is of such a size as to project beyond the outer surface of the barrel. Thelower face of the cover or top plate 14 at the periphery thereof is provided with a depending flange 15 for receiving the upper end of the barrel. The cover or top plate 14; is held in place against displacement in any desired way, and as shown in the drawings I have provided an axially disposed retaining screw 16 which extends'through the cover or top plate 1 1 into the barrel. The inner face of the cover or top platelet is provided with an opening at a point spaced of the axial center thereof for receiving a pin 17 carried by the upper end of the barrel and it is obvious that when the cover plate is in position and the pin is fitted within the opening that rotation of the cover or top plate on the barrel is prevented.

The spaces between the lugs 13 formed on the outer surface of the barrel form guide ways 18. The combination rings 14 are of course of annular construction and are disposed on the barrel in abutting relation to one another and are held in place against displacement by the plates 11 and 14:. The inner faces of each of the combination rings 14 are provided with spaced ribs 19 of substantially semi-circular configuration and these ribs are disposed intermediate the upper and lower faces of the rings. The spaces between the ribs 19 0f each ring are of substantially the same size as the retaining lugs 13 which permits the rings to be initially placed on the barrel.

The-shackle 21 of the padlock is providedwith parallel arms 22 the outer ends of which are reduced in cross section as at 23 and' provided with spaced locking notches 24;. The spaces betweent-he terminals of the semi-circular ribs 19 are also of such size to receive the reduced portions 23 of the parallel arms therebetween.

The device is assembled by placing the combination rings upon the barrel 10 after which the cover or tOp plate 14- is secured in place. The lock is now ready for use. The combination of the lock is of course determined by the position of the numbers on the outer face of the rings relative to the spaces, between the terminals of the ribs 19 and wheneach padlock is sold the combination for that particular lock is given therewith.

In operation of the improved lock the rings are so placed that the spaces between the locking ribs will lie in registration with the semi-cylindrical notches orslots 12;

which will form cylindrical ways for receiving the reduced arm 23 of the shackle 21. The shackle is now placed 1n position and the rings are turned indiscriminately and the ribs 19 will ride into. the notches 245 in the reduced extensions of the shackle arms thereby holding the shackle against movement. and. displacement. When it is. desired to remove the shackle it is merely necessary to again align the spaces between. the terminals of the ribs 19: with the longitudinal notches or slots 12 and the shackle canubeeasily pulled out trom the barrel. Owing to theposition of the ribs 19, it can be seen that the same can easily engage between the lugs 13 inthe ways 18 and in the: notches 2%.

It is to be also noted that when the topv plate 14 is removed that the rings also can be removed by aligning the spaces between the terminals of" the ribs with the lugs 13.

There can be as many of the rings as desired, that is, the padlock can be made in different sizes and as shown in the drawings 1 have provided four of the locking combination rings.

One ofthe main features of the padlock is the large number of different combinations, which can be set up and that the padlock can be easily sold in a knocked down condition. In fact it is primarily intended to sell the lock in a knocked down con.- dition and permit the buyer to assemble the same and set up any combination that is desired.

Changes in details may be made without departing from the spirit or the scope of this invention, but

l/Vhat I claim as new is:

The combination padlock comprising a solid cylindrical barrel, having longitudinal:

grooves therein at diametrically opposite points, equi -distantly spaced longitudinally alined lugs formed on the barrel intermediate the grooves, locking rings rotatably re ceivedin the barrel, spacedsemicircular ribs formed on the inner faces of the locking rings, a shackle having parallel arms formed with equi-distantly spaced notches, the ribs of the rings being adapted to enin the notches and with the longitudinally alined lugs, a cap plate fitted in one end of the barrel to hold the locking rings in place, the inner face of the cap; plate raving for-med therein a centrally disposed opening, a pin carried by the barrel and arranged i-n the-opening and serving to hold the cap, plate against rotation, and a threaded element passing through the cap plate and engagin the barrel whereby to hold the upper end of the latter against the cap. plate and thus cause the ribs to contact with the lugs with sufficient friction as to, hold the rings, against accidental rotation.

In testimony whereof I afiiX-my signature.

ALBERT WILSON. 

